Coiler head stop motion



Feb. 2, 1965 H. w. BRADBURN comm HEAD STOP MOTION Original Filed April23, 1962 .N m mm A VR m5 w m w H ATTORNEY United States Patent 3,167,819CSELER HEAD STOP MQTIGN Howard W. Bradburn, Rte. 4, Marion, N.C.Continuation of application Ser. No. 189,431, Apr. 23, 19132. Thisapplication Aug. 6, 1964, er. No. 389,539 2 Claims. (Cl. l .25)

This is a continuation of my copending application SN. 189,431, filedApril 23, 1962, entitled Coiler Head Stop Motion and now abandoned.

This invention relates to stop motions for textile machines and hasparticular application to devices having coiler heads such as cardingmachines, combers and the like.

Stop motions for coiler heads have formerly been constructed in a numberof ways, none of which have succeeded in providing a positive stopmechanism actuated by a faulty strand delivery. Stop motions of thebalance type, for example, are often prevented from actuating the otherparts of the stop motion by lint accumulations.

Accordingly, it is an important object of the present invention toprovide a mechanical stop motion for use with textile machines havingcoiler heads affording a positive stopping action.

Another object of the invention is to avoid waste from and damage to acarding machine by providing a mechanism for positively disconnectingthe dofler and feed roll thereof from its source of power upon theoccurrence of a defective sliver.

The construction designed to carry out the invention will be hereinafterdescribed, together with other features thereof.

The invention will be more readily understood from a reading of thefollowing specification and by reference to the accompanying drawingforming a part thereof, Wherein an example of the invention is shown andwherein:

FIGURE 1 is a perspective view illustrating a stop motion constructed inaccordance with the present invention operatively mounted upon a cardingmachine which is shown schematically with parts omitted and parts brokenaway, and

FIGURE 2 is an enlarged perspective view, taken from the rear of FTGURE1, illustrating the details of the stop motion mounted upon the coilerhead.

The coiler head of the carding machine illustrated has a trumpet forcompressing the sliver strand fed thereto from the fiber stock deliveredfrom the doffer cylinder. Mechanism feeding fiber stock to the machineincludes the usual feed roll. An arm A supporting the trumpet adjacentone end thereof has a pivotal mounting B intermediate the trumpet andthe free end thereof. Resilient means C exerts force upon the arm Aurging the trumpet upwardly against the force exerted thereon by thestrand, the force exerted by the strand normally maintaining the trumpetin a depressed position as illustrated in FIGURE 1. Linkage means D iscarried adjacent the free end of the arm A. Means E stopping the feedingof fiber stock to and from the machine is actuated by the linkage meansD when the arm A is pivoted responsive to the resilient means Cresulting from a faulty strand.

Referring more particularly to the drawing, the stop motion device isillustrated as being positioned upon the coiler head of a cardingmachine, the frame of which is illustrated at 11. The coiler mechanismis driven from the shaft 12 which drives the calender rolls 13. Thesliver strand 14, from the web 14a delivered by the dot-fer cylinder, isfed over the guide 15 through the trumpet 16 into the coiler head 10between the rolls 17. The sliver is then delivered through the usualtube (not shown) into the rotating sliver can 13. The rotating slivercan 18 is positioned on the strand 19 which includes a vertical standard19a. The shaft 12 drives a vertical shaft 20 (through bevel gears notshown) which drives the roll 17 through the bevel gears 21.

The carding machine is illustrated schematically and includes a feedroll 22 for feeding fiber stock into the carding machine. The maincylinder is illustrated at 23 and the usual doifer cylinder isillustrated at 24. The shaft 25 normally drives the feed roll 22 throughthe doifer cylinder by a shaft and suitable gearing (not shown) as wellas the dotfer cylinder through the gear 26. The shaft 25 is driven bythe belt 27 and pulley 28. The idler pulley 29 is loosely carried by theshaft 25.

in the embodiment of the invention illustrated, the stop motionmechanism, when actuated by a faulty strand, will move the belt 27 fromits driving pulley 28 to the idler pulley 29 thus disconnecting theshaft 25 from its driving means and stopping the input of fiber stockfrom the feed roll 22 as well as the output of stock from the dofiercylinder 24.

Referring to FIGURE 1, the trumpet 16 is illustrated as being indepressed position, which is its normal position during operation of themachine. Now, with special reference to FTGURE 2, the trumpet 16 isillustrated as being in raised position as would be the case when movedresponsive to a faulty strand. The substantially L-shaped arm or tongueA carries the trumpet 16 in one leg 30 thereof while the other leg 31has a pivotal mounting B carried by the coiler head 10. The pivotalmounting includes a bracket 32 carried by the rear surface of the coilerhead 10 and a pin 33 has fixed connection with a bracket 34 which hasfixed connection with the inner surface of the leg 31. The pin 33rotates freely in the bracket 32.

Resilient means C exerts force upon the arm A urging the trumpetupwardly in an attempt to overcome the force exerted thereon by thesliver 14 in normal operation. The resilient means C includes aresilient extension 35 from a coil spring 36 which is suitably anchoredto a stub shaft 37. The stub shaft 37 is carried by a bracket 38 whichhas fixed mounting upon the coiler head 10. The resilient extension 35bears against the arcuate surface of an abutment 39 carried by the innersurface of the leg 31 above the pivotal mounting B. The member 62 is astop for limiting movement of the leg 31 when a strand breaks. Themember 63 is a pivoted link which may be lodged between the leg 31 andthe coiler head 10 to temporarily deactivate the stop motion.

Linkage means D has fixed connection as at 40 through the pin 33 to thearm A. The link 41 has pivotal connection as at 42 with a substantiallyvertically disposed link 43. Referring again to FIGURE 1, it will benoted that the link 43 has threaded adjustment means 44 by which it isconnected to an Lshaped link 45 which has a downwardly projecting leg45a. The link 45 has a pivotal connection with the standard intermediateits ends as at 46. The lower end of the downturned leg 45a is normallysupported upon a link 47 which has a pivotal connection with thestandard 19a as at 48. A second vertically disposed link 49 has pivotalconnection as at 50 with the free end of the link 47. The link 49 haspivotal connection as at 51 with an offset arm 52 fixedly carried by arod 53. The rod 53 is mounted for rotation in the bracket 54a carried bythe standard 19a on one end and is rotatable within the frame as at 53aon the other end. The rod carries a bifurcated member 54 fixed adjacentthe end thereof within which a horizontal rod 55 is carried. The rod 55has a stop member 56 fixed on the outside of the bifurcated member 54and projects through a portion 11a of the frame 11. A strong coil spring57 is compressed between the inside surface of the frame member 11a anda stop member 53 carried by the rod 55.

Means E for moving the belt 27 to the idler pulley 29 thus stopping thefeeding of fiber stock includes a yoke member 59 pivotally carried as at60 by a frame portion 1111. An oifset portion of the yoke member haspivotal connection as at 61 with the rod 55.

It is thus seen that when the sliver becomes excessively light or brokenby the trumpet the leg 30 will be raised resulting from the resilientmeans C turning the arm A about its pivotal mounting B. This results inthe lowering of the link 43 causing the leg 45a to release the link 47for pivotal movement resulting from the turning of the rod 53 clockwisein FIGURE 1, as is its normal tendency due to the inwardly inclinedbifurcated member 54 and the action of the coil spring 57 thereon. Thismakes it possible for the bifurcated member 54 to release the stopmember 56, allowing the coil spring 57 to urge the rod 55 inwardly tocause the yoke 59 to pivot about its pivot point to move the belt 27outwardly to the idler pulley 29. It is evident that this invention hasapplication to other textile machines having a coiler head with atrumpet and feeding means.

While a preferred embodiment of the invention has been described usingspecific terms, such description is for illustrative purposes only, andit is to be understood that changes and variations may be made withoutdeparting from the spirit or scope of the following claims.

What is claimed is:

1. In a textile machine and the like having a coiler head with a trumpetcompressing a strand fed thereto by feeding means, the improvementincluding, an arm supporting the trumpet, a pivotal mounting for saidarm carried by the coiler head, first resilient means exerting forceupon the arm urging the trumpet upwardly against the force exertedthereon by the strand, the force exerted by the strand normallymaintaining the trumpet in a depressed position, depending linkage meanscarried by the arm urged downwardly by said first resilient means,

second resilient means also normally urging said arm downwardly andreleased by movement of said linkage means responsive to upward movementof the arm by said first resilient means upon the occurrence of a faultystrand, and mechanical means actuated by said second resilient meanswhen released to deactivate the feeding means to discontinue the feedingof the strand to the trumpet.

2. In a textile machine and the like having a coiler head with a trumpetcompressing a strand fed thereto and a feed roll driven by a doifer rollhaving driving means therefor, the improvement including, an armsupporting the trumpet, a pivotal mounting for said arm carried by thecoiler head, first resilient means exerting force upon the arm urgingthe trumpet upwardly against the force exerted thereon by the strand,the force exerted by the strand normally maintaining the trumpet in adepressed position, depending linkage means carried by the arm urgeddownwardly by said first resilient means, second resilient means alsonormally urging said arm downwardly and released by movement of saidlinkage means responsive to upward movement of the arm by said firstresilient means upon the occurrence of a faulty strand, and mechanicalmeans actuated by said second resilient means when released todeactivate the driving means for the doffer roll consequently stoppingthe feed roll.

References Cited by the Examiner UNITED STATES PATENTS 198,111 12/77Houghton 19-.25 867,131 9/07 Haselden 226-11 1,727,285 9/ 29 Gallung19.25

FOREIGN PATENTS 548,923 10/42 Great Britain.

DONALD W. PARKER, Primary Examiner.

1. IN A TEXTILE MACHINE AND THE LIKE HAVING A COILER HEAD WITH A TRUMPETCOMPRESSING A STRAND FED THERETO BY FEEDING MEANS, THE IMPROVEMENTINCLUDING, AN ARM SUPPORTING THE TRUMPET, A PIVOTAL MOUNTING FOR SAIDARM CARRIED BY THE COILER HEAD, FIRST RESILIENT MEANS EXERTING FORCEUPON THE ARM URGING THE TRUMPET UPWARDLY AGAINST THE FORCE EXERTEDTHEREON BY THE STRAND, THE FORCE EXERTED BY THE STRAND NORMALLYMAINTAINING THE TRUMPET IN A DEPRESSED POSITION, DEPENDING LINKAGE MEANSCARRIED BY THE ARM URGED DOWNWARDLY BY SAID FIRST RESILIENT MEANS,